Food can spoil through mere exposure to air because it will lose electrons. this loss of electrons creates free radicals, which destroy chemical bonds in the food, causing it to spoil. what is this process called

Enzymes affect the reactions in living cells by changing the

Light waves can move through , but they travel fastest when they move through a(n) .

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?